#!/usr/bin/env bash
# Script to partly automate updating this package
# Based on upd.sh from abf.io/import/ha_cluster_exporter
# sudo dnf install /usr/bin/rpmbuild /usr/bin/spectool /usr/bin/rpmspec /usr/bin/git /usr/bin/curl /usr/bin/abf /usr/bin/jq /usr/bin/sed /usr/bin/tar /usr/bin/xz

set -x
set -e
set -f
set -u

spec="$PWD"/spoofdpi.spec
dir0="$PWD"

old_version="$(rpmspec -q --srpm --qf '%{version}' "$spec")"
latest_version="$(curl --silent "https://api.github.com/repos/xvzc/SpoofDPI/releases/latest" | jq '.tag_name' | sed -e 's,",,g' -e 's,^v,,')"
[ -n "$latest_version" ]
if [ "$old_version" = "$latest_version" ]; then
	echo "No updates"
	exit 0
fi

sed -E -i'' "$spec" \
	-e "s,^Version:.+,Version:\t${latest_version}," \
	-e "s,^Release:.+,Release:\t1," \
	--

source0="$(rpmspec --parse "$spec" | grep -i ^Source0: | awk -F '/' '{print $NF}')" 
spectool --get-files --source 0 "$spec"
[ -f "$source0" ]

patches_ok=0

tmp="$(mktemp --tmpdir=/tmp -d)"
trap 'if [ "$patches_ok" = 1 ]; then rm -fr "$tmp"; fi' EXIT
pushd "$tmp"
	tar -xf "$dir0"/"$source0"
	pushd SpoofDPI-"$latest_version"
		go mod vendor
	popd
	XZ_OPT="-T0 -v" tar cJf spoofdpi-"$latest_version"-go-mod-vendor.tar.xz SpoofDPI-"$latest_version"/vendor
	mv spoofdpi-"$latest_version"-go-mod-vendor.tar.xz "$dir0"
popd
rm -f .abf.yml
abf put -n
# check appliability of patches
rpmbuild --define "_sourcedir $PWD" --define "_builddir $tmp" -bp "$spec" && patches_ok=1

PAGER='' git diff
# can be copypasted for a commit message
echo "upd: $old_version -> $latest_version"

if [ "$patches_ok" = 0 ]; then
	echo "PATCHES require attention!"
fi